<em><a href="http://www.shutterstock.com/pic-91894466/stock-photo-iceberg-in-greenland.html?src=1e2c3cb3be720af351bc9f8e733509e6-1-27">Iceberg</a> photo from <a href="http://www.shutterstock.com/">Shutterstock</a></em>
Climate change deniers often sing the frustrating song that carbon dioxide emissions are <a href="http://www.good.is/post/rick-santorum-thinks-carbon-dioxide-isn-t-harmful-to-plants-tell-that-to-a-plant/">harmless</a>, but a groundbreaking study by scientists at Harvard, the University of Wisconsin, and Oregon State University has produced a paper which the authors claim to be the first to "definitively show the role carbon dioxide played in helping to end the last ice age." CO2 concentrations rose from 185 parts per million to 260 ppm over the roughly 10,000 years during which the last ice age ended, according to <a href="http://www.physorg.com/news/2012-04-carbon-dioxide-global-ice-age.html">Physorg</a>. Compare that with our man-made emissions, which have raised CO2 concentrations by the same amount in the past two centuries alone, and we all have something to be very concerned about....<br><br><a href='http://inhabitat.com/scientists-prove-that-co2-emissions-drove-most-recent-ice-age/'>READ ARTICLE</a>

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Researchers Prove that Carbon Dioxide Emissions Prompted Last Ice Age

<em><a href="http://www.shutterstock.com/pic-91894466/stock-photo-iceberg-in-greenland.html?src=1e2c3cb3be720af351bc9f8e733509e6-1-27">Iceberg</a> photo from <a href="http://www.shutterstock.com/">Shutterstock</a></em>
Climate change deniers often sing the frustrating song that carbon dioxide emissions are <a href="http://www.good.is/post/rick-santorum-thinks-carbon-dioxide-isn-t-harmful-to-plants-tell-that-to-a-plant/">harmless</a>, but a groundbreaking study by scientists at Harvard, the University of Wisconsin, and Oregon State University has produced a paper which the authors claim to be the first to "definitively show the role carbon dioxide played in helping to end the last ice age." CO2 concentrations rose from 185 parts per million to 260 ppm over the roughly 10,000 years during which the last ice age ended, according to <a href="http://www.physorg.com/news/2012-04-carbon-dioxide-global-ice-age.html">Physorg</a>. Compare that with our man-made emissions, which have raised CO2 concentrations by the same amount in the past two centuries alone, and we all have something to be very concerned about....<br><br><a href='http://inhabitat.com/scientists-prove-that-co2-emissions-drove-most-recent-ice-age/'>READ ARTICLE</a>

2

Researchers Prove that Carbon Dioxide Emissions Prompted Last Ice Age

<em><a href="http://www.shutterstock.com/pic-91894466/stock-photo-iceberg-in-greenland.html?src=1e2c3cb3be720af351bc9f8e733509e6-1-27">Iceberg</a> photo from <a href="http://www.shutterstock.com/">Shutterstock</a></em>
Climate change deniers often sing the frustrating song that carbon dioxide emissions are <a href="http://www.good.is/post/rick-santorum-thinks-carbon-dioxide-isn-t-harmful-to-plants-tell-that-to-a-plant/">harmless</a>, but a groundbreaking study by scientists at Harvard, the University of Wisconsin, and Oregon State University has produced a paper which the authors claim to be the first to "definitively show the role carbon dioxide played in helping to end the last ice age." CO2 concentrations rose from 185 parts per million to 260 ppm over the roughly 10,000 years during which the last ice age ended, according to <a href="http://www.physorg.com/news/2012-04-carbon-dioxide-global-ice-age.html">Physorg</a>. Compare that with our man-made emissions, which have raised CO2 concentrations by the same amount in the past two centuries alone, and we all have something to be very concerned about....<br><br><a href='http://inhabitat.com/scientists-prove-that-co2-emissions-drove-most-recent-ice-age/'>READ ARTICLE</a>

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Researchers Prove that Carbon Dioxide Emissions Prompted Last Ice Age

Iceberg photo from Shutterstock
Climate change deniers often sing the frustrating song that carbon dioxide emissions are harmless, but a groundbreaking study by scientists at Harvard, the University of Wisconsin, and Oregon State University has produced a paper which the authors claim to be the first to "definitively show the role carbon dioxide played in helping to end the last ice age." CO2 concentrations rose from 185 parts per million to 260 ppm over the roughly 10,000 years during which the last ice age ended, according to Physorg. Compare that with our man-made emissions, which have raised CO2 concentrations by the same amount in the past two centuries alone, and we all have something to be very concerned about....